Komatsu PC200-8M0 Shop Manual page 103

300 Undercarriage and frame
Idler
No. Check item
1 Outside diameter of protrusion
2 Outside diameter of tread
3 Thickness of tread
4 Difference of tread
5 Total width
6 Width of tread
Clearance between shaft and
7
bushing
Interference between idler and
8
bushing
Clearance between bushing
9 and support (Sum of clearance
at both sides)
PC200, 200LC, 220, 220LC-8M0
Standard dimension
538
500
26
19
159
37.5
Tolerance
Standard
dimension
Shaft
–0.250
65
–0.350
Tolerance
Standard
dimension
Shaft
+0.108
72
+0.008
Standard clearance
0.5 to 1.0
Criteria
Repair limit
—
488
20
25
—
—
Standard Allowable
clearance clearance
Hole
+0.164 0.176 to
–0.074 0.514
Standard Allowable
interference interference
Hole
–0.032 0.040 to
–0.062 0.170
Clearance limit
—
SEN06118-00
Unit: mm
Remedy
Rebuild by build-
up welding or
replace
—
Replace bushing
—
5
10-300